The reported device, intended for use in treatment, was received for evaluation.There was a relationship found between the returned device and the reported incident.A visual inspection was performed on the product and no issue was observed.Complaint of "short circuit" error message was confirmed.Product failed functional testing with a short circuit error in port a only.The complaint was confirmed and the root cause has been determined to be a defective electronic component on the main pcb.A review of the device history records showed there were no indications to suggest that the product did not meet manufacturing specification or would not be able to perform as intended.A complaint history review concluded this was a repeat issue.Internal complaint reference: (b)(4).
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